import uvicorn
from fastapi import FastAPI
from fastapi.openapi.docs import get_swagger_ui_html, get_swagger_ui_oauth2_redirect_html, get_redoc_html
from starlette.staticfiles import StaticFiles
from pydantic import BaseModel

# 创建FastAPI实例，禁用掉FastAPI会自动生成Swagger UI和Redoc文档
app = FastAPI(docs_url=None, redoc_url=None)

# 静态文件挂载（路由与静态文件映射）
app.mount("/static", StaticFiles(directory="../statics"), name="static")


# 重新提供一个Swagger UI，相当于我们自己重写了这么一个路由
@app.get("/docs", include_in_schema=False)
def custom_swagger_ui():
    return get_swagger_ui_html(
        openapi_url = "/openapi.json",
        title = "Swagger UI for FastAPI",
        swagger_js_url="/static/swagger-ui-bundle.min.js",
        swagger_css_url="/static/swagger-ui.min.css"
    )
@app.get(app.swagger_ui_oauth2_redirect_url, include_in_schema=False)
async def swagger_ui_redirect():
    return get_swagger_ui_oauth2_redirect_html()

# 这里与Swagger UI一样，重新提供Redoc
@app.get("/redoc", include_in_schema=False)
def custom_redoc():
    return get_redoc_html(
        openapi_url = "/openapi.json",
        title = "Redoc for FastAPI",
        redoc_js_url="/static/redoc.standalone.js"
    )

class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None

@app.post("/items/")
async def create_item(item: Item):
    item_dict = item.model_dump()   # 把模型对象转为字典
    if item.tax:
        price_with_tax = item.price + item.tax
        item_dict.update({"price_with_tax": price_with_tax})

    return item_dict

@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item):
    results = {"item_id": item_id, **item.model_dump()}
    return results

@app.put("/orders/{order_id}")
async def update_order(order_id: int, order_no: list[str],item: Item):
    result = {"order_id": order_id, "order_no": order_no, "item": item.model_dump()}
    return result

if __name__ == '__main__':
    app.debug = True
    uvicorn.run("main:app", host="127.0.0.1", port=8003, reload=True)

